/Engine/Plugins/Runtime/RigVM/Source/RigVM/Public/RigVMCore/RigVM.h
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=RigVM) void SetParameterValueFloat ( const [FName](API\Runtime\Core\UObject\FName) & InParameterName, float InValue, int32 InArrayIndex )